CN219942734U

CN219942734U - Fodder pelletization device

Info

Publication number: CN219942734U
Application number: CN202321300774.7U
Authority: CN
Inventors: 朱德钧; 刘文军
Original assignee: Guangzhou Pucheng Industrial Co ltd
Current assignee: Guangzhou Pucheng Industrial Co ltd
Priority date: 2023-05-25
Filing date: 2023-05-25
Publication date: 2023-11-03
Anticipated expiration: 2033-05-25

Abstract

The utility model relates to a feed granulating device, which comprises a tempering mechanism, a cooling mechanism, a first granulating mechanism, a mixing mechanism and a second granulating mechanism, wherein a tempering chamber of the tempering mechanism is provided with a first feed inlet for a first raw material to enter, and is used for curing the first raw material; the cooling chamber is used for cooling the cured first raw material; the first granulating mechanism is arranged in the conditioning cavity and is used for granulating the first raw material in the conditioning cavity; the mixing mechanism is connected with the cooling chamber and is used for mixing the added second raw material and the cooled first raw material to form feed; the second pelletization mechanism is connected with the mixing mechanism and is used for pelleting the feed. The feed granulating device carries out high-temperature curing on the first raw material, does not need to put the second raw material into a high-temperature environment, and avoids the problem that the activity of the second raw material is reduced due to the high-temperature environment, thereby improving the quality of granulated feed.

Description

Fodder pelletization device

Technical Field

The utility model relates to the technical field of feeds, in particular to a feed granulating device.

Background

With the rapid development of the breeding industry, the breeding scale is continuously increased, however, the feed is the only nutrition source for breeding animals, and the feed cost accounts for 70% of the breeding cost. In order to improve the digestion utilization rate of the feed, the feed is processed to prepare the pellet feed. At present, in the feed pelletization processing process, part of feed raw materials need to be subjected to high-temperature tempering, and the high-temperature tempering can not only effectively remove harmful germs of the raw materials, but also effectively improve the utilization rate of the raw materials. However, the temperature required by high-temperature tempering is higher, and the activity of part of feed raw materials is obviously reduced after high-temperature high-humidity tempering, so that the quality of the feed after pelleting is reduced.

Disclosure of Invention

The aim of the embodiment of the utility model is that: the feed granulating device is simple in structure and can improve the quality of feed.

To achieve the purpose, the embodiment of the utility model adopts the following technical scheme:

there is provided a feed pelleting device comprising:

the tempering mechanism comprises a tempering chamber, wherein the tempering chamber is provided with a first feed inlet for the first raw material to enter, and is used for curing the first raw material;

the cooling mechanism comprises a cooling cavity, the cooling cavity is communicated with the tempering cavity, and the cooling cavity is used for cooling the cured first raw material;

the first granulating mechanism is arranged in the conditioning cavity and is used for granulating the first raw material in the conditioning cavity and pushing the granulated first raw material into the cooling cavity;

the mixing mechanism is connected with the cooling chamber and is used for mixing the added second raw material and the cooled first raw material to form feed;

the second granulating mechanism is connected with the mixing mechanism and is used for granulating the feed.

As a preferred scheme of fodder pelletization device, first pelletization mechanism includes feeding member and pelletization board, the feeding member sets up in the quenching and tempering cavity, the pelletization board sets up quenching and tempering cavity with between the cooling chamber, be provided with first pelletization through-hole on the pelletization board, the feeding member can with in the quenching and tempering cavity first raw materials push to the pelletization board, and pass first pelletization through-hole gets into in the cooling chamber.

As a preferable scheme of the feed granulating device, the feed granulating device comprises a box body, and the conditioning chamber, the cooling chamber, the mixing mechanism and the second granulating mechanism are sequentially arranged in the box body from top to bottom.

As a preferred scheme of fodder pelletization device, second pelletization mechanism includes ring mould and compression roller, the ring mould has the inner chamber, the circumference lateral wall interval of ring mould is provided with a plurality of intercommunication the second pelletization through-hole of inner chamber, be provided with the second feed inlet on the circumference lateral wall of ring mould, mixing arrangement is interior fodder can follow the second feed inlet gets into the inner chamber, the compression roller rotates the setting and is in the inner chamber.

As a preferred scheme of fodder pelletization device, mixing mechanism includes the compounding cavity and rotates the setting and be in the interior compounding piece of compounding cavity, the compounding cavity sets up cooling chamber with between the ring mould, just the compounding cavity communicates respectively cooling chamber with the inner chamber intercommunication, be provided with on the chamber wall of compounding cavity and be used for supplying the third feed inlet of second raw materials input.

As a preferred scheme of fodder pelletization device, fodder pelletization device still includes crushing mechanism, crushing mechanism is including smashing the cavity and rotating the setting and be in smash the roller in the cavity, smash the cavity be located cooling chamber with between the compounding cavity, just smash the cavity respectively with cooling chamber with the compounding cavity intercommunication, smash the roller and be used for smashing in the compounding cavity first raw materials.

As a preferable mode of the feed granulating device, the cooling mechanism further comprises an air compressor, a dryer, a cooler and a connecting pipe which are arranged outside the cooling chamber, and the connecting pipe is sequentially communicated with the air compressor, the dryer, the cooler and the cooling chamber.

As a preferred embodiment of the feed pelletization device, the cooling chamber has at least a first chamber wall for the first raw material to roll downward, the first chamber wall is arranged obliquely, and a plurality of protrusions are arranged on the first chamber wall at intervals.

As a preferable mode of the feed granulating device, a first air inlet is arranged on the cavity wall of the tempering chamber and is used for inputting water vapor into the tempering chamber.

As a preferable scheme of the feed granulating device, a first screen and a second screen are obliquely arranged below the second granulating mechanism, and the second screen is arranged below the first screen, wherein the mesh holes of the first screen are larger than those of the second screen.

The embodiment of the utility model has the beneficial effects that: the device comprises a first granulating mechanism, a cooling cavity, a mixing mechanism, a second granulating mechanism, a mixing mechanism, a first granulating mechanism, a second granulating mechanism and a temperature regulating mechanism, wherein the first raw material is subjected to high-temperature curing, the cured first raw material is subjected to preliminary granulation, the first raw material subjected to granulation is pushed into the cooling cavity through the first granulating mechanism, the first raw material subjected to granulation is cooled down through the cooling cavity, so that the first raw material enters the mixing mechanism and descends to a proper stability, then the second raw material is added into the mixing mechanism, the newly added second raw material and the cooled first raw material are mixed by the mixing mechanism to form a feed, the feed is mixed to form the feed, the feed is fed into the second granulating mechanism, the second granulating mechanism can carry out secondary granulation on the feed, so that the granulation of the feed is efficiently completed.

Drawings

The utility model is described in further detail below with reference to the drawings and examples.

Fig. 1 is a schematic structural view of a feed pelleting device according to an embodiment of the present utility model.

Fig. 2 is a schematic structural view of a second granulation mechanism according to an embodiment of the present utility model.

In the figure:

1. a tempering mechanism; 11. a tempering chamber; 12. a first feed port; 13. an air inlet; 2. a cooling mechanism; 21. a cooling chamber; 211. a first cavity wall; 2111. a protrusion; 22. an air compressor; 23. a dryer; 24. a cooler; 25. a connecting pipe; 3. a first granulation mechanism; 31. a feeding member; 311. a first motor; 312. a first rotating shaft; 313. a spiral sheet; 32. a granulating plate; 321. a first granulation through-hole; 4. a mixing mechanism; 41. a mixing chamber; 411. a second feed inlet; 42. a mixing piece; 5. a second granulation mechanism; 51. a ring mold; 511. an inner cavity; 512. a second granulation through-hole; 513. a third feed inlet; 52. a press roller; 53. a third motor; 6. a crushing mechanism; 61. a pulverizing chamber; 62. a pulverizing roller; 7. a case; 8. a first screen; 9. a second screen; 20. a first separator; 30. a second separator; 40. a third separator; 50. a fourth separator; 60. a fifth separator; 70. and a sixth separator.

Detailed Description

In order to make the technical problems solved by the present utility model, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

To solve the above technical drawbacks, the present utility model discloses a feed pelleting device, as shown in fig. 1 and 2, which comprises a tempering mechanism 1, a cooling mechanism 2, a first pelleting mechanism 3, a mixing mechanism 4 and a second pelleting mechanism 5. The tempering mechanism 1 is provided with a tempering chamber 11, the tempering chamber 11 is provided with a first feed inlet 12 for the first raw material to enter, and the tempering chamber 11 is used for curing the first raw material; the cooling mechanism 2 comprises a cooling chamber 21, the cooling chamber 21 is communicated with the tempering chamber 11, and the cooling chamber 21 is used for cooling the cured first raw material; the first granulating mechanism 3 is arranged in the tempering chamber 11, and the first granulating mechanism 3 is used for performing preliminary granulating on the first raw material in the tempering chamber 11 and pushing the granulated first raw material into the cooling chamber 21; the mixing mechanism 4 is connected with the cooling chamber 21, and the mixing mechanism 4 is used for mixing the added second raw material and the cooled first raw material to form feed; the second pelletization mechanism 5 is connected with the mixing mechanism 4, and the second pelletization mechanism 5 is used for pelleting the feed.

The feed pelletization device of this embodiment carries out high temperature curing through quenching and tempering mechanism 1 to first raw materials, carry out preliminary pelletization with the first raw materials after the curing, and push the first raw materials that accomplishes the pelletization into cooling chamber 21 through first pelletization mechanism 3, so that the first raw materials after the pelletization carries out cooling down, so that the first raw materials get into between the mixing mechanism 4 and descend to suitable stability, then add the second raw materials in mixing mechanism 4, the mixing mechanism 4 carries out the mixture with newly-added second raw materials and the first raw materials after the cooling so as to form the fodder, the mixed after the formation of fodder is sent into second pelletization mechanism 5, second pelletization mechanism 5 can carry out the second grade pelletization to the fodder, in order to make the first raw materials and second raw materials mix more even in mixing mechanism 4 through carrying out the preliminary pelletization to first raw materials, and this fodder carries out high temperature curing only, in order to get rid of the harmful germ of first raw materials, and improve the utilization ratio of first raw materials, and put into high temperature environment with the second raw materials, the problem of reducing activity of the second raw materials after the high temperature environment has been avoided, thereby improving the quality of the pelletization of the fodder.

The first raw material is a non-thermosensitive raw material, and the activity of the non-thermosensitive raw material is not affected by high temperature; the second raw material is a heat-sensitive raw material, and the activity of the heat-sensitive raw material in a high-temperature environment is easy to be reduced.

In this embodiment, the feed pelletization device includes a case 7, and a conditioning chamber 11, a cooling chamber 21, a mixing mechanism 4, and a second pelletization mechanism 5 are sequentially disposed in the case 7 from top to bottom. Specifically, the feed granulating device further comprises a box body 7, the tempering chamber 11, the cooling chamber 21, the crushing chamber 61 of the crushing mechanism 6, the mixing chamber of the mixing mechanism 4 and the annular die 51 are sequentially arranged in the box body 7 from top to bottom, so that the first raw material in the cooling chamber 21 can gradually enter the crushing chamber 61 under the action of gravity, the first raw material in the crushing chamber 61 can gradually enter the mixing chamber under the action of gravity, and the feed in the mixing chamber gradually enters the annular die 51 under the action of gravity, so that the raw material does not need to be manually pushed, the processing efficiency is high, and the labor cost can be reduced.

The wall of the tempering chamber 11 is provided with a first air inlet 13, and the first air inlet 13 is used for inputting steam into the tempering chamber 11 so as to form a high-temperature environment in the tempering chamber 11 to cure and temper the first raw material.

In this embodiment, the first granulating mechanism 3 includes a feeding member 31 and a granulating plate 32, the feeding member 31 is disposed in the conditioning chamber 11, the granulating plate 32 is disposed between the conditioning chamber 11 and the cooling chamber 21, a first granulating through hole 321 is disposed on the granulating plate 32, the feeding member 31 can push the first raw material in the conditioning chamber 11 to the granulating plate 32, along with the feeding member 31, the first raw material in the conditioning chamber 11 is continuously pushed to the granulating plate 32 and passes through the granulating through hole to enter the cooling chamber 21, and when the first raw material passes through the first granulating through hole 321, the first raw material can form a strip shape or granule shape to complete the primary granulation of the first raw material.

Optionally, the feeding member 31 includes a first motor 311, a first rotating shaft 312, and a spiral piece 313, where the first motor 311 is connected to the first rotating shaft 312, and the spiral piece 313 is spirally wound on a circumferential side wall of the first rotating shaft 312, and the first motor 311 drives the first rotating shaft 312 to rotate so as to drive the spiral piece 313 to rotate, so that the spiral piece 313 pushes the first raw material to the granulating plate 32, and the spiral piece 313 can continuously and uniformly feed the first raw material, so that the speed of the first raw material entering the cooling chamber 21 is more uniform, and the cooling chamber 21 cools the first raw material more uniformly and sufficiently.

In some embodiments, the feeding member 31 includes a cylinder and a pushing plate, the pushing plate is disposed in the conditioning chamber 11, the cylinder is disposed outside the box 7, and an output rod of the cylinder extends into the conditioning chamber 11 to be connected with the pushing plate, so as to push the pushing plate to move towards a direction approaching or separating from the granulating plate 32, so as to push the first raw material in the conditioning chamber 11 to move towards the granulating plate 32.

In this embodiment, the feed granulating apparatus further includes the pulverizing mechanism 6, the pulverizing mechanism 6 includes the pulverizing chamber 61 and the pulverizing roller 62 rotatably disposed in the pulverizing chamber 61, the pulverizing chamber 61 is located between the cooling chamber 21 and the mixing mechanism 4, and the pulverizing chamber 61 is respectively communicated with the mixing chamber of the cooling chamber 21 and the mixing mechanism 4, so that the first raw material in the cooling chamber 21 can fall into the pulverizing chamber 61, and the pulverizing roller 62 can further pulverize the cooled first raw material, which is favorable for the thorough mixing of the first raw material and the second raw material.

Specifically, the mixing mechanism 4 includes a mixing chamber 41 and a mixing member 42 rotatably provided in the mixing chamber 41, the mixing chamber 41 is provided between the cooling chamber 21 and the ring mold 51, and the mixing chamber 41 communicates with the cooling chamber 21 and the inner chamber 511, respectively, and the mixing chamber 41 is provided with a third feed port 513 for inputting a second raw material. In this embodiment, the mixing chamber 41 is communicated with the cooling chamber 21 through the pulverizing chamber 61, and after the first raw material in the cooling chamber 21 enters the pulverizing chamber 61, the first raw material enters the mixing chamber 41 from the pulverizing chamber 61, and enters the second raw material from the third feeding port 513, and the mixing roller rotates in the mixing chamber 41 to fully mix the first raw material and the second raw material to form the feed.

Specifically, the compounding roller includes second motor, second pivot and puddle, and the second motor sets up outside box 7, and the output shaft of second motor stretches into compounding cavity 41 and is connected with the second pivot, and the interval sets up a plurality of puddles that mix on the lateral wall of second pivot, and the second motor drive second pivot rotates to drive to mix the puddle and rotate and mix first raw materials and second raw materials and accompany.

Specifically, as shown in fig. 2, the second granulation mechanism 5 includes a ring mold 51 and a pressing roller 52, the ring mold 51 has an inner cavity 511, a plurality of second granulation through holes 512 communicating with the inner cavity 511 are provided at intervals on the circumferential side wall of the ring mold 51, and the pressing roller 52 is rotatably provided in the inner cavity 511. In this embodiment, the inner cavity 511 of the annular mold 51 is communicated with the mixing chamber 41, wherein a second feeding port is arranged above the circumferential side wall of the annular mold 51, so that mixed feed can enter the inner cavity 511 from the second feeding port of the annular mold 51, the third motor 53 drives the pressing roller 52 to rotate, so that the feed entering the inner cavity 511 is extruded, and the feed is discharged from the inner cavity 511 from the second granulating through hole 512, so that secondary granulation of the feed is completed. The rotation axis of the pressing roller 52 is parallel to the axis of the ring mold 51.

In some embodiments, the cooling mechanism 2 further includes an air compressor 22, a dryer 23, a cooler 24, and a connection pipe 25 disposed outside the cooling chamber 21, the connection pipe 25 communicating with the air compressor 22, the dryer 23, the cooler 24, and the cooling chamber 21 in this order. In operation, the air compressor 22 supplies air to the dryer 23 via the connection pipe 25, the dryer 23 dries the air, the dried air flows to the cooler 24 via the connection pipe 25, the cooler 24 cools the air, and the cooled air is supplied to the cooling chamber 21, so that a low-temperature environment is formed in the cooling chamber 21 to cool the cured first raw material. Wherein, the upper end surface of the cooling chamber 21 is provided with an air outlet, and the water vapor and the cooling gas in the tempering chamber 11 can be discharged out of the box body 7 through the air outlet.

In another embodiment, the cooling mechanism 2 further comprises a liquid cooling pipe, the liquid cooling pipe is arranged on the cavity wall of the cooling cavity 21, and heat exchange is performed between the liquid cooling pipe and the feed so as to realize the function of cooling the feed. Preferably, the liquid-cooled tube is a serpentine liquid-cooled tube, and the heat exchange area of the serpentine liquid-cooled tube is larger, so that the heat dissipation effect on the feed can be improved.

In this embodiment, the cooling chamber 21 has at least a first cavity wall 211 for the first raw material to roll downward, the first cavity wall 211 is inclined, and a plurality of protrusions 2111 are disposed on the first cavity wall 211 at intervals; on the one hand, the protrusions 2111 may limit the falling speed of the first raw material to a certain extent to prolong the residence time of the first raw material in the cooling chamber 21, and the cooling mechanism 2 sufficiently cools the first raw material; on the other hand, in the rolling falling process of the first raw material, the first raw material can be jacked up by the protrusions, so that part of the first raw material can be suspended, the heat exchange area of gas and the first raw material is increased, and the heat dissipation effect of the first raw material is improved.

Wherein, the tempering chamber 11 is formed by surrounding the first partition board 20, the granulating board 32, part of the upper wall and the side wall of the box body 7; the cooling chamber 21 is formed by enclosing the second partition board 30, the third partition board 40 and the side wall of the box body 7, wherein the second partition board 30 and the third partition board 40 are obliquely arranged and are all positioned below the first partition board 20, and the first chamber wall is a side surface of the third partition board 40 facing the second partition board 30; the crushing chamber 61 is formed by enclosing a fourth partition plate 50, a fifth partition plate 60 and the side wall of the box body 7, wherein one end of the fourth partition plate 50 is spaced from the side wall of the box body 7 to form a fourth feeding port, and the fifth partition plate 60 is arranged below the fourth partition plate 50 at intervals; the mixing chamber 41 is formed by surrounding the side walls of the fifth partition plate 60, the sixth partition plate 70 and the box body 7, the sixth partition plate 70 is arranged below the fifth partition plate 60 at intervals, a fifth feed inlet is formed in the fifth partition plate 60, the first raw material in the crushing chamber 61 can enter the mixing chamber 41 from the fifth feed inlet, and the annular die 51 is arranged below the sixth partition plate 70.

Preferably, the seventh baffle is a tapered plate to facilitate the gathering of feed within the mixing chamber 41 into the cavity 511 of the ring mold 51.

Specifically, the first screen 8 and the second screen 9 are obliquely arranged below the second granulation mechanism 5, and the second screen 9 is arranged below the first screen 8, wherein the mesh size of the first screen 8 is larger than the mesh size of the second screen 9. After the inner cavity 511 is extruded out of the feed from the second granulating through hole 512 through the pressing roller 52, the feed subjected to secondary granulating falls onto the first screen 8, the feed with larger volume cannot pass through the sieve holes of the first screen 8, the rest of the feed can fall onto the second screen 9, the feed with smaller volume can pass through the sieve holes of the second screen 9 to fall to the bottom of the second screen 9, and the feed remained on the second screen 9 is the feed meeting the requirements, so that the feed particles are screened out by arranging two screens to obtain the feed meeting the quality requirements, and the uniformity of the feed particles is improved.

Optionally, the first screen 8 and the second screen 9 are detachably arranged on the side wall of the box 7, the box 7 is provided with a first discharge hole corresponding to the first screen 8, a second discharge hole corresponding to the second screen 9, and oversized feed drops to the first discharge hole along the inclined direction of the first screen 8, so that operators can collect oversized feed from the first discharge hole, and feed meeting the quality requirement drops to the second discharge hole along the inclined direction of the second screen 9, so that operators can collect feed from the second discharge hole; and a dust collector is provided at the bottom of the case 7 to collect the dust feed passing through the second screen 9.

In the description herein, it should be understood that the terms "upper," "lower," and the like are used for convenience in description and simplicity of operation only, and are not necessarily indicative or implying any particular orientation, configuration or operation of such apparatus or elements herein, and therefore should not be construed as limiting the present utility model.

In the description of the present specification, reference to the term "an embodiment" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in the foregoing embodiments, and that the embodiments described in the foregoing embodiments may be combined appropriately to form other embodiments that will be understood by those skilled in the art.

The technical principle of the present utility model is described above in connection with the specific embodiments. The description is made for the purpose of illustrating the general principles of the utility model and should not be taken in any way as limiting the scope of the utility model. Other embodiments of the utility model will be apparent to those skilled in the art from consideration of this specification without undue burden.

Claims

1. A feed pelleting device, comprising:

2. The feed pelleting device of claim 1, wherein the first pelleting mechanism comprises a feeding member and a pelleting plate, the feeding member is arranged in the tempering chamber, the pelleting plate is arranged between the tempering chamber and the cooling chamber, a first pelleting through hole is formed in the pelleting plate, and the feeding member can push the first raw material in the tempering chamber to the pelleting plate so that the first raw material can pass through the first pelleting through hole and enter the cooling chamber.

3. The feed pelleting device of claim 1, wherein the feed pelleting device comprises a box, and the tempering chamber, the cooling chamber, the mixing mechanism and the second pelleting mechanism are sequentially arranged in the box from top to bottom.

4. The feed pelleting device according to claim 1, wherein the second pelleting mechanism comprises a ring die and a compression roller, the ring die is provided with an inner cavity, a plurality of second pelleting through holes communicated with the inner cavity are formed in the circumferential side wall of the ring die at intervals, a second feeding port is formed in the circumferential side wall of the ring die, the feed in the mixing mechanism can enter the inner cavity from the second feeding port, and the compression roller is rotatably arranged in the inner cavity.

5. The feed pelletization device of claim 4, wherein the mixing mechanism comprises a mixing chamber and a mixing piece rotatably arranged in the mixing chamber, the mixing chamber is arranged between the cooling chamber and the annular die, the mixing chamber is respectively communicated with the cooling chamber and the inner cavity, and a third feeding port for inputting the second raw material is arranged on a cavity wall of the mixing chamber.

6. The feed pelleting device of claim 5, further comprising a comminuting mechanism comprising a comminuting chamber and a comminuting roller rotatably disposed within the comminuting chamber, the comminuting chamber being located between the cooling chamber and the compounding chamber and the comminuting chamber being in communication with the cooling chamber and the compounding chamber, respectively, the comminuting roller being for comminuting the first feedstock within the compounding chamber.

7. The feed pelleting device of any one of claims 1 to 6, wherein the cooling mechanism further comprises an air compressor, a dryer, a cooler, and a connection pipe provided outside the cooling chamber, the connection pipe communicating the air compressor, the dryer, the cooler, and the cooling chamber in this order.

8. Feed pelleting device according to any one of claims 1 to 6, characterized in that the cooling chamber has at least a first chamber wall for the first raw material to roll downwards, which first chamber wall is arranged obliquely, which first chamber wall is provided with a plurality of protrusions at intervals.

9. The feed pelleting device according to any one of claims 1 to 6, wherein a first air inlet is provided on a cavity wall of the tempering chamber, the first air inlet being used for inputting water vapor into the tempering chamber.

10. The feed pelleting device according to any one of claims 1 to 6, wherein a first screen and a second screen are obliquely provided below the second pelleting mechanism, and the second screen is provided below the first screen therebetween, wherein the mesh size of the first screen is larger than the mesh size of the second screen.